ITS#9839 Add note for ldap_url_parse() with port 0
In OpenLDAP 2.6.x and earlier, when the port is set to 0 in url string explicitly, ldap_url_parse() will set lud_port of struct ldap_url_desc to the default port. This behavior is not documented.
Signed-off-by: Jiaqing Zhao jiaqing.zhao@linux.intel.com